.k-article{
    position: relative;
    padding: 1rem;
    margin-bottom: 1rem;
    font-size: .8rem;
    line-height: 1.6rem;
    background: #fff;
    border-bottom: 1px solid #eee;
    color: #333;
}
.k-article.fold{
    max-height: 100%;
    overflow: hidden;
}
.k-article .k-article-unfold-btn{
    display: none;
    position: absolute;
    box-sizing: border-box;
    left: 0;
    right: 0;
    bottom: 0;
    height: 5rem;
    padding-top: 3rem;
    text-align: center;
    font-size: 1.5rem;
    color: #e0652f;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0, #fff 100%);
}
.k-article.fold .k-article-unfold-btn{
    display: block;
}
.k-article .k-article-title{
    margin: .5rem 0 1rem;
    font-size: 1.4rem;
    line-height: 2rem;
}
.k-article .k-article-info{
    font-size: .8rem;
    color: #aaa;
}
.k-article .k-article-subtitle{
    font-size: 1.1rem;
    margin-top: 1rem;
}
.k-article .k-article-paragraph{
    margin: .5rem 0 1rem;
}
.k-article .k-article-img{
    max-width: 100%;
    margin: auto;
}